Sylius Customizing Models with error class not found in namespaces - sylius

Question

I followed the guideline on Sylius site for customizing models:
http://docs.sylius.com/en/1.0/customization/model.html
When I run:
php bin/console doctrine:schema:update --force
or
php bin/console doctrine:migrations:diff
Error: The class 'AppBundle\Entity\Country' was not found in the chain configured namespaces
Files added at:
\src\AppBundle\Entity\Country.php
\src\AppBundle\Resources\config\doctrine\Country.orm.yml
Added:
sylius_addressing:
resources:
country:
classes:
model: AppBundle\Entity\Country
at:
\app\config\config.yml
And doctrine related settings on config.yml as below:
doctrine:
dbal:
driver: "%database_driver%"
host: "%database_host%"
port: "%database_port%"
dbname: "%database_name%"
user: "%database_user%"
password: "%database_password%"
server_version: "5.5"
charset: UTF8
doctrine_migrations:
dir_name: "%kernel.root_dir%/migrations"
namespace: Sylius\Migrations
table_name: sylius_migrations
name: Sylius Migrations
Country.php
<?php
namespace AppBundle\Entity;
use Sylius\Component\Addressing\Model\Country as BaseCountry;
class Country extends BaseCountry
{
private $flag;
public function getFlag(): ?bool
{
return $this->flag;
}
public function setFlag(bool $flag): void
{
$this->flag = $flag;
}
}
(Sylius 1.0 installed on Windows 7)
Tried clear cache and many other methods but no clues.

Answer 1

You have an indentation error in config.yml, it should be:
sylius_addressing:
resources:
country:
classes:
model: AppBundle\Entity\Country
(you haven't tab symbol before country)

Answer 2

Thanks, but just check again, the tab already included.
YAML forbid tabs. Use 2 or 4 spaces instead. See here

Answer 3

I have installed latest version (1.1.6) and it works!
So, should be a bug on 1.0.0 version...